Interventions for Replacing Missing Teeth: Dental Implants in Fresh Extraction Sockets ( Immediate, Immediate-Delayed and Delayed Implants)
Dental implants can be placed in sockets just after tooth extraction (immediate implants) or after a couple of weeks up to a couple of months (immediate-delayed implants) or thereafter (delayed implants). This review looked at which was the best time to place dental implants and whether it would be advantageous to augment sites with gaps present at implant placement. It also tried to determine the most effective bone augmentation procedure.
The seven identified studies included too few patients to answer the questions. Four studies evaluated which is the best time to place implants. One study evaluated whether bone grafting is advantageous at implant placement and two studies evaluated which are the best grafting techniques.
There is currently too little evidence to draw any reliable conclusions, however, the aesthetic outcome could be slightly better when placing implants early after tooth extraction, though early placed implants might be at a higher risk of failure. There is not enough evidence supporting or refusing the need of bone augmentation when extracted teeth are immediately replaced with dental implants, nor it is known whether any augmentation procedure is better than the others. Bone substitutes (anorganic bovine bone) can be used instead of self generated (autogenous) bone graft.
Reference:
Esposito M, Grusovin MG, Polyzos IP, Felice P,Worthington HV. Interventions for replacing missing teeth: dental implants in fresh extraction sockets (immediate, immediate-delayed and delayed implants). Cochrane Database of Systematic Reviews 2010, Issue 9. Art. No.: CD005968. DOI: 10.1002/14651858.CD005968.pub3.
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